Evaporator Temperature Sensor Removal, Installation, and Test
1
1.
HVAC Unit - Remove
2.
Evaporator Core - Remove
3.
Evaporator Temperature Sensor - Remove
4.
All Removed Parts - Install
1.
Install the evaporator temperature sensor (A) in the evaporator core. Refer to the following position list.
B
C
*
Row
mm (in)
Factory-Preset Position
3rd
128 (5.04)
New Position
2nd or 4th
128 (5.04)
*: Measure from end of aluminum evaporator tank.
1.
Evaporator Temperature Sensor - Test
1.
Dip the sensor in ice water, and measure the resistance between terminals No. 1 and No. 2.
2.
Then pour warm water on the sensor, and check for a change in resistance.
3.
Compare the resistance readings with the specifications shown in the graph; the resistance should be within the specifications.
4.
If the resistance is not as specified, replace the evaporator temperature sensor.
